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Table 1 Cement Hydration Experiments.

From: Experimental Study of Cement - Sandstone/Shale - Brine - CO2Interactions

ID

Solid

Solution

Solid:Soln (g/g)

T °C

Days

pH(c,25)

G3

A

0.13 m CaCl2

1:10

115

43

11.9

G6

A

Brine

1:10

115

43

not measured

G7

B

MQ water

1:10

115

58

12.2

G8

B

MQ water

1:10

115

87

12.3

G9

B

MQ water

2:10

115

58

12.3

G10

B

MQ water

2:10

115

87

12.1

G11

B

MQ water

1:10

95

74

12.3

G12

B

MQ water

2:10

95

43

12.3

G13

B

MQ water

2:10

95

74

12.1

G14

B

Brine

1:10

95

88

11.4

G15

B

Brine

2:10

95

88

12.3

  1. A indicates Class G cement, B indicates Class G cement plus bentonite (39 g cement to 1 g bentonite), and Brine indicates 1.8 molal NaCl, 0.55 molal CaCl2 and 0.1 molal MgCl2 solution. Note that brine pH values are conditional (c) because of the high ionic strength.
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Geochemical Transactions

ISSN: 1467-4866

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